Sony CFD-G35 Service Manual ▷ View online
3
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1.
A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2.
A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
digital multimeter is suitable for this job.
3.
Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
To Exposed Metal
Parts on Set
0.15
µ
F
1.5 k
Ω
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
CFD-G35
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe more than 30 cm away from the objective lens.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
• Code number of Chuck Plate Jig : X-4918-255-1
Chuck Plate Jig.
• Code number of Chuck Plate Jig : X-4918-255-1
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
1.
Press CD open knob.
2.
Open the lid for CD.
3.
Push on SWITCH (S801) as following figure.
4.
Confirm the laser diode emission while observing the objecting
lens. When there is no emission, Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
lens. When there is no emission, Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
Insert a precision
screw driver and push
SWITCH (S801)
screw driver and push
SWITCH (S801)
4
CFD-G35
SECTION 2
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Remote Control
Location of controls
FUNCTION
BAND
POWER
VOL +*, –
x
.
,
>
Z
PUSH
OPEN/CLOSE
VOLUME –, +*
TUNE –, +
DISPLAY
ENTER
MEMORY
ENTER
MEMORY
MODE
i
Number buttons
x
*
POWER
SLEEP
OPR/BATT
Loading a CD
With the labeled side up
Inserting a cassette
With the side you want to
play facing upward
play facing upward
BAND
AUTO PRESET
AUTO PRESET
SOUND
Display
Remote sensor
Total track number
D
E
Total playing time
Display
*The button has a tactile dot.
POWER DRIVE
WOOFER
WOOFER
.
,
>
PRESET –, +
N
X
SLEEP
MODE
TUNE+, –
WOOFER
SOUND
About CD-Rs/CD-RWs
This player can play CD-Rs/CD-RWs
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.
* CD-DA is the abbreviation for Compact
Disc Digital Audio. It is a recording
standard used for Audio CDs.
standard used for Audio CDs.
If you have any questions or problems
concerning your player, please consult your
nearest Sony dealer.
concerning your player, please consult your
nearest Sony dealer.
Programmed track
Playing order
u
5
CFD-G35
SECTION 3
DISASSEMBLY
•
The equipment can be removed using the following procedure.
3-1. Cabinet (Front) Assy- 1
Note :
Follow the disassembly procedure in the numerical order given.
CABINET (FRONT) ASSY-1
(page 5)
CABINET (FRONT) ASSY-2
(page 6)
PANEL ASSY
(page 7)
LCD BOARD, PANEL (UPPER)
(page 7)
CONTROL
(POWER),
CONTROL
(CD),
HEADPHONE
BOARD
(page 6)
PANEL (UPPER)
ASSY-1
(page 8)
PANEL (UPPER)
ASSY-2
(page 8)
POWER, TRANS
BOARD
(page 9)
TUNER
BOARD
, DUCT (
UPPER
, LOWER)
(page 9)
BATT COM, BATT
BOARD
(page 10)
MAIN
BOARD
-1
(page 10)
MAIN
BOARD
-2
(page 11)
PDW, L-R/REG
BOARD
(page 12)
MECHANISM DECK SECTION (MF-V5-117)
(page 11)
CD BLOCK SECTION (KSM-213RDP)
(page 12)
Set
2
t
wo screws
+BVTP 3
×
20
3
e
ight screws
+BVTP 3
×
14
5
s
crew
+BVTP 3
×
10
4
Open the CD lid in the
direction of the arrow.
1
Remove the battery case lid
in the direction of the arrow.
detal view
6
CFD-G35
3-3. CONTROL (POWER) , CONTROL (CD) , HEADPHONE Board
3-2. Cabinet (Front) Assy- 2
1
Remove the cabinet (front) assy
in the direction of the arrow.
4
CNP391
(from PWD board KH353)
5
CNP393
(from L-R/REG board KH374)
3
f
lexible flat cable
(from MAIN board CNP801)
2
f
lexible flat cable
(from MAIN board CNP804)
MAIN board
HEADPHONE board
1
t
wo screws
+BVTP 2.6
×
10
3
s
crew
+BVTP 3
×
10
5
t
wo screws
+BVTP 2.6
×
10
6
CONTROL
(CD) board,
button (CD)
4
HEADPHONE
board
2
CONTROL
(POWER) board,
button (power)
